Current File : /home2/c141648/rosenblumtv.com/wp-admin/js/revisions.js
/**
* @file Revisions interface functions, Backbone classes and
* the revisions.php document.ready bootstrap.
*
* @output wp-admin/js/revisions.js
*/
/* global isRtl */
window.wp = window.wp || {};
(function($) {
var revisions;
/**
* Expose the module in window.wp.revisions.
*/
revisions = wp.revisions = { model: {}, view: {}, controller: {} };
// Link post revisions data served from the back end.
revisions.settings = window._wpRevisionsSettings || {};
// For debugging.
revisions.debug = false;
/**
* wp.revisions.log
*
* A debugging utility for revisions. Works only when a
* debug flag is on and the browser supports it.
*/
revisions.log = function() {
if ( window.console && revisions.debug ) {
window.console.log.apply( window.console, arguments );
}
};
// Handy functions to help with positioning.
$.fn.allOffsets = function() {
var offset = this.offset() || {top: 0, left: 0}, win = $(window);
return _.extend( offset, {
right: win.width() - offset.left - this.outerWidth(),
bottom: win.height() - offset.top - this.outerHeight()
});
};
$.fn.allPositions = function() {
var position = this.position() || {top: 0, left: 0}, parent = this.parent();
return _.extend( position, {
right: parent.outerWidth() - position.left - this.outerWidth(),
bottom: parent.outerHeight() - position.top - this.outerHeight()
});
};
/**
* ========================================================================
* MODELS
* ========================================================================
*/
revisions.model.Slider = Backbone.Model.extend({
defaults: {
value: null,
values: null,
min: 0,
max: 1,
step: 1,
range: false,
compareTwoMode: false
},
initialize: function( options ) {
this.frame = options.frame;
this.revisions = options.revisions;
// Listen for changes to the revisions or mode from outside.
this.listenTo( this.frame, 'update:revisions', this.receiveRevisions );
this.listenTo( this.frame, 'change:compareTwoMode', this.updateMode );
// Listen for internal changes.
this.on( 'change:from', this.handleLocalChanges );
this.on( 'change:to', this.handleLocalChanges );
this.on( 'change:compareTwoMode', this.updateSliderSettings );
this.on( 'update:revisions', this.updateSliderSettings );
// Listen for changes to the hovered revision.
this.on( 'change:hoveredRevision', this.hoverRevision );
this.set({
max: this.revisions.length - 1,
compareTwoMode: this.frame.get('compareTwoMode'),
from: this.frame.get('from'),
to: this.frame.get('to')
});
this.updateSliderSettings();
},
getSliderValue: function( a, b ) {
return isRtl ? this.revisions.length - this.revisions.indexOf( this.get(a) ) - 1 : this.revisions.indexOf( this.get(b) );
},
updateSliderSettings: function() {
if ( this.get('compareTwoMode') ) {
this.set({
values: [
this.getSliderValue( 'to', 'from' ),
this.getSliderValue( 'from', 'to' )
],
value: null,
range: true // Ensures handles cannot cross.
});
} else {
this.set({
value: this.getSliderValue( 'to', 'to' ),
values: null,
range: false
});
}
this.trigger( 'update:slider' );
},
// Called when a revision is hovered.
hoverRevision: function( model, value ) {
this.trigger( 'hovered:revision', value );
},
// Called when `compareTwoMode` changes.
updateMode: function( model, value ) {
this.set({ compareTwoMode: value });
},
// Called when `from` or `to` changes in the local model.
handleLocalChanges: function() {
this.frame.set({
from: this.get('from'),
to: this.get('to')
});
},
// Receives revisions changes from outside the model.
receiveRevisions: function( from, to ) {
// Bail if nothing changed.
if ( this.get('from') === from && this.get('to') === to ) {
return;
}
this.set({ from: from, to: to }, { silent: true });
this.trigger( 'update:revisions', from, to );
}
});
revisions.model.Tooltip = Backbone.Model.extend({
defaults: {
revision: null,
offset: {},
hovering: false, // Whether the mouse is hovering.
scrubbing: false // Whether the mouse is scrubbing.
},
initialize: function( options ) {
this.frame = options.frame;
this.revisions = options.revisions;
this.slider = options.slider;
this.listenTo( this.slider, 'hovered:revision', this.updateRevision );
this.listenTo( this.slider, 'change:hovering', this.setHovering );
this.listenTo( this.slider, 'change:scrubbing', this.setScrubbing );
},
updateRevision: function( revision ) {
this.set({ revision: revision });
},
setHovering: function( model, value ) {
this.set({ hovering: value });
},
setScrubbing: function( model, value ) {
this.set({ scrubbing: value });
}
});
revisions.model.Revision = Backbone.Model.extend({});
/**
* wp.revisions.model.Revisions
*
* A collection of post revisions.
*/
revisions.model.Revisions = Backbone.Collection.extend({
model: revisions.model.Revision,
initialize: function() {
_.bindAll( this, 'next', 'prev' );
},
next: function( revision ) {
var index = this.indexOf( revision );
if ( index !== -1 && index !== this.length - 1 ) {
return this.at( index + 1 );
}
},
prev: function( revision ) {
var index = this.indexOf( revision );
if ( index !== -1 && index !== 0 ) {
return this.at( index - 1 );
}
}
});
revisions.model.Field = Backbone.Model.extend({});
revisions.model.Fields = Backbone.Collection.extend({
model: revisions.model.Field
});
revisions.model.Diff = Backbone.Model.extend({
initialize: function() {
var fields = this.get('fields');
this.unset('fields');
this.fields = new revisions.model.Fields( fields );
}
});
revisions.model.Diffs = Backbone.Collection.extend({
initialize: function( models, options ) {
_.bindAll( this, 'getClosestUnloaded' );
this.loadAll = _.once( this._loadAll );
this.revisions = options.revisions;
this.postId = options.postId;
this.requests = {};
},
model: revisions.model.Diff,
ensure: function( id, context ) {
var diff = this.get( id ),
request = this.requests[ id ],
deferred = $.Deferred(),
ids = {},
from = id.split(':')[0],
to = id.split(':')[1];
ids[id] = true;
wp.revisions.log( 'ensure', id );
this.trigger( 'ensure', ids, from, to, deferred.promise() );
if ( diff ) {
deferred.resolveWith( context, [ diff ] );
} else {
this.trigger( 'ensure:load', ids, from, to, deferred.promise() );
_.each( ids, _.bind( function( id ) {
// Remove anything that has an ongoing request.
if ( this.requests[ id ] ) {
delete ids[ id ];
}
// Remove anything we already have.
if ( this.get( id ) ) {
delete ids[ id ];
}
}, this ) );
if ( ! request ) {
// Always include the ID that started this ensure.
ids[ id ] = true;
request = this.load( _.keys( ids ) );
}
request.done( _.bind( function() {
deferred.resolveWith( context, [ this.get( id ) ] );
}, this ) ).fail( _.bind( function() {
deferred.reject();
}) );
}
return deferred.promise();
},
// Returns an array of proximal diffs.
getClosestUnloaded: function( ids, centerId ) {
var self = this;
return _.chain([0].concat( ids )).initial().zip( ids ).sortBy( function( pair ) {
return Math.abs( centerId - pair[1] );
}).map( function( pair ) {
return pair.join(':');
}).filter( function( diffId ) {
return _.isUndefined( self.get( diffId ) ) && ! self.requests[ diffId ];
}).value();
},
_loadAll: function( allRevisionIds, centerId, num ) {
var self = this, deferred = $.Deferred(),
diffs = _.first( this.getClosestUnloaded( allRevisionIds, centerId ), num );
if ( _.size( diffs ) > 0 ) {
this.load( diffs ).done( function() {
self._loadAll( allRevisionIds, centerId, num ).done( function() {
deferred.resolve();
});
}).fail( function() {
if ( 1 === num ) { // Already tried 1. This just isn't working. Give up.
deferred.reject();
} else { // Request fewer diffs this time.
self._loadAll( allRevisionIds, centerId, Math.ceil( num / 2 ) ).done( function() {
deferred.resolve();
});
}
});
} else {
deferred.resolve();
}
return deferred;
},
load: function( comparisons ) {
wp.revisions.log( 'load', comparisons );
// Our collection should only ever grow, never shrink, so `remove: false`.
return this.fetch({ data: { compare: comparisons }, remove: false }).done( function() {
wp.revisions.log( 'load:complete', comparisons );
});
},
sync: function( method, model, options ) {
if ( 'read' === method ) {
options = options || {};
options.context = this;
options.data = _.extend( options.data || {}, {
action: 'get-revision-diffs',
post_id: this.postId
});
var deferred = wp.ajax.send( options ),
requests = this.requests;
// Record that we're requesting each diff.
if ( options.data.compare ) {
_.each( options.data.compare, function( id ) {
requests[ id ] = deferred;
});
}
// When the request completes, clear the stored request.
deferred.always( function() {
if ( options.data.compare ) {
_.each( options.data.compare, function( id ) {
delete requests[ id ];
});
}
});
return deferred;
// Otherwise, fall back to `Backbone.sync()`.
} else {
return Backbone.Model.prototype.sync.apply( this, arguments );
}
}
});
/**
* wp.revisions.model.FrameState
*
* The frame state.
*
* @see wp.revisions.view.Frame
*
* @param {object} attributes Model attributes - none are required.
* @param {object} options Options for the model.
* @param {revisions.model.Revisions} options.revisions A collection of revisions.
*/
revisions.model.FrameState = Backbone.Model.extend({
defaults: {
loading: false,
error: false,
compareTwoMode: false
},
initialize: function( attributes, options ) {
var state = this.get( 'initialDiffState' );
_.bindAll( this, 'receiveDiff' );
this._debouncedEnsureDiff = _.debounce( this._ensureDiff, 200 );
this.revisions = options.revisions;
this.diffs = new revisions.model.Diffs( [], {
revisions: this.revisions,
postId: this.get( 'postId' )
} );
// Set the initial diffs collection.
this.diffs.set( this.get( 'diffData' ) );
// Set up internal listeners.
this.listenTo( this, 'change:from', this.changeRevisionHandler );
this.listenTo( this, 'change:to', this.changeRevisionHandler );
this.listenTo( this, 'change:compareTwoMode', this.changeMode );
this.listenTo( this, 'update:revisions', this.updatedRevisions );
this.listenTo( this.diffs, 'ensure:load', this.updateLoadingStatus );
this.listenTo( this, 'update:diff', this.updateLoadingStatus );
// Set the initial revisions, baseUrl, and mode as provided through attributes.
this.set( {
to : this.revisions.get( state.to ),
from : this.revisions.get( state.from ),
compareTwoMode : state.compareTwoMode
} );
// Start the router if browser supports History API.
if ( window.history && window.history.pushState ) {
this.router = new revisions.Router({ model: this });
if ( Backbone.History.started ) {
Backbone.history.stop();
}
Backbone.history.start({ pushState: true });
}
},
updateLoadingStatus: function() {
this.set( 'error', false );
this.set( 'loading', ! this.diff() );
},
changeMode: function( model, value ) {
var toIndex = this.revisions.indexOf( this.get( 'to' ) );
// If we were on the first revision before switching to two-handled mode,
// bump the 'to' position over one.
if ( value && 0 === toIndex ) {
this.set({
from: this.revisions.at( toIndex ),
to: this.revisions.at( toIndex + 1 )
});
}
// When switching back to single-handled mode, reset 'from' model to
// one position before the 'to' model.
if ( ! value && 0 !== toIndex ) { // '! value' means switching to single-handled mode.
this.set({
from: this.revisions.at( toIndex - 1 ),
to: this.revisions.at( toIndex )
});
}
},
updatedRevisions: function( from, to ) {
if ( this.get( 'compareTwoMode' ) ) {
// @todo Compare-two loading strategy.
} else {
this.diffs.loadAll( this.revisions.pluck('id'), to.id, 40 );
}
},
// Fetch the currently loaded diff.
diff: function() {
return this.diffs.get( this._diffId );
},
/*
* So long as `from` and `to` are changed at the same time, the diff
* will only be updated once. This is because Backbone updates all of
* the changed attributes in `set`, and then fires the `change` events.
*/
updateDiff: function( options ) {
var from, to, diffId, diff;
options = options || {};
from = this.get('from');
to = this.get('to');
diffId = ( from ? from.id : 0 ) + ':' + to.id;
// Check if we're actually changing the diff id.
if ( this._diffId === diffId ) {
return $.Deferred().reject().promise();
}
this._diffId = diffId;
this.trigger( 'update:revisions', from, to );
diff = this.diffs.get( diffId );
// If we already have the diff, then immediately trigger the update.
if ( diff ) {
this.receiveDiff( diff );
return $.Deferred().resolve().promise();
// Otherwise, fetch the diff.
} else {
if ( options.immediate ) {
return this._ensureDiff();
} else {
this._debouncedEnsureDiff();
return $.Deferred().reject().promise();
}
}
},
// A simple wrapper around `updateDiff` to prevent the change event's
// parameters from being passed through.
changeRevisionHandler: function() {
this.updateDiff();
},
receiveDiff: function( diff ) {
// Did we actually get a diff?
if ( _.isUndefined( diff ) || _.isUndefined( diff.id ) ) {
this.set({
loading: false,
error: true
});
} else if ( this._diffId === diff.id ) { // Make sure the current diff didn't change.
this.trigger( 'update:diff', diff );
}
},
_ensureDiff: function() {
return this.diffs.ensure( this._diffId, this ).always( this.receiveDiff );
}
});
/**
* ========================================================================
* VIEWS
* ========================================================================
*/
/**
* wp.revisions.view.Frame
*
* Top level frame that orchestrates the revisions experience.
*
* @param {object} options The options hash for the view.
* @param {revisions.model.FrameState} options.model The frame state model.
*/
revisions.view.Frame = wp.Backbone.View.extend({
className: 'revisions',
template: wp.template('revisions-frame'),
initialize: function() {
this.listenTo( this.model, 'update:diff', this.renderDiff );
this.listenTo( this.model, 'change:compareTwoMode', this.updateCompareTwoMode );
this.listenTo( this.model, 'change:loading', this.updateLoadingStatus );
this.listenTo( this.model, 'change:error', this.updateErrorStatus );
this.views.set( '.revisions-control-frame', new revisions.view.Controls({
model: this.model
}) );
},
render: function() {
wp.Backbone.View.prototype.render.apply( this, arguments );
$('html').css( 'overflow-y', 'scroll' );
$('#wpbody-content .wrap').append( this.el );
this.updateCompareTwoMode();
this.renderDiff( this.model.diff() );
this.views.ready();
return this;
},
renderDiff: function( diff ) {
this.views.set( '.revisions-diff-frame', new revisions.view.Diff({
model: diff
}) );
},
updateLoadingStatus: function() {
this.$el.toggleClass( 'loading', this.model.get('loading') );
},
updateErrorStatus: function() {
this.$el.toggleClass( 'diff-error', this.model.get('error') );
},
updateCompareTwoMode: function() {
this.$el.toggleClass( 'comparing-two-revisions', this.model.get('compareTwoMode') );
}
});
/**
* wp.revisions.view.Controls
*
* The controls view.
*
* Contains the revision slider, previous/next buttons, the meta info and the compare checkbox.
*/
revisions.view.Controls = wp.Backbone.View.extend({
className: 'revisions-controls',
initialize: function() {
_.bindAll( this, 'setWidth' );
// Add the checkbox view.
this.views.add( new revisions.view.Checkbox({
model: this.model
}) );
// Add the button view.
this.views.add( new revisions.view.Buttons({
model: this.model
}) );
// Prep the slider model.
var slider = new revisions.model.Slider({
frame: this.model,
revisions: this.model.revisions
}),
// Prep the tooltip model.
tooltip = new revisions.model.Tooltip({
frame: this.model,
revisions: this.model.revisions,
slider: slider
});
// Add the tooltip view.
this.views.add( new revisions.view.Tooltip({
model: tooltip
}) );
// Add the tickmarks view.
this.views.add( new revisions.view.Tickmarks({
model: tooltip
}) );
// Add the visually hidden slider help view.
this.views.add( new revisions.view.SliderHelp() );
// Add the slider view.
this.views.add( new revisions.view.Slider({
model: slider
}) );
// Add the Metabox view.
this.views.add( new revisions.view.Metabox({
model: this.model
}) );
},
ready: function() {
this.top = this.$el.offset().top;
this.window = $(window);
this.window.on( 'scroll.wp.revisions', {controls: this}, function(e) {
var controls = e.data.controls,
container = controls.$el.parent(),
scrolled = controls.window.scrollTop(),
frame = controls.views.parent;
if ( scrolled >= controls.top ) {
if ( ! frame.$el.hasClass('pinned') ) {
controls.setWidth();
container.css('height', container.height() + 'px' );
controls.window.on('resize.wp.revisions.pinning click.wp.revisions.pinning', {controls: controls}, function(e) {
e.data.controls.setWidth();
});
}
frame.$el.addClass('pinned');
} else if ( frame.$el.hasClass('pinned') ) {
controls.window.off('.wp.revisions.pinning');
controls.$el.css('width', 'auto');
frame.$el.removeClass('pinned');
container.css('height', 'auto');
controls.top = controls.$el.offset().top;
} else {
controls.top = controls.$el.offset().top;
}
});
},
setWidth: function() {
this.$el.css('width', this.$el.parent().width() + 'px');
}
});
// The tickmarks view.
revisions.view.Tickmarks = wp.Backbone.View.extend({
className: 'revisions-tickmarks',
direction: isRtl ? 'right' : 'left',
initialize: function() {
this.listenTo( this.model, 'change:revision', this.reportTickPosition );
},
reportTickPosition: function( model, revision ) {
var offset, thisOffset, parentOffset, tick, index = this.model.revisions.indexOf( revision );
thisOffset = this.$el.allOffsets();
parentOffset = this.$el.parent().allOffsets();
if ( index === this.model.revisions.length - 1 ) {
// Last one.
offset = {
rightPlusWidth: thisOffset.left - parentOffset.left + 1,
leftPlusWidth: thisOffset.right - parentOffset.right + 1
};
} else {
// Normal tick.
tick = this.$('div:nth-of-type(' + (index + 1) + ')');
offset = tick.allPositions();
_.extend( offset, {
left: offset.left + thisOffset.left - parentOffset.left,
right: offset.right + thisOffset.right - parentOffset.right
});
_.extend( offset, {
leftPlusWidth: offset.left + tick.outerWidth(),
rightPlusWidth: offset.right + tick.outerWidth()
});
}
this.model.set({ offset: offset });
},
ready: function() {
var tickCount, tickWidth;
tickCount = this.model.revisions.length - 1;
tickWidth = 1 / tickCount;
this.$el.css('width', ( this.model.revisions.length * 50 ) + 'px');
_(tickCount).times( function( index ){
this.$el.append( '<div style="' + this.direction + ': ' + ( 100 * tickWidth * index ) + '%"></div>' );
}, this );
}
});
// The metabox view.
revisions.view.Metabox = wp.Backbone.View.extend({
className: 'revisions-meta',
initialize: function() {
// Add the 'from' view.
this.views.add( new revisions.view.MetaFrom({
model: this.model,
className: 'diff-meta diff-meta-from'
}) );
// Add the 'to' view.
this.views.add( new revisions.view.MetaTo({
model: this.model
}) );
}
});
// The revision meta view (to be extended).
revisions.view.Meta = wp.Backbone.View.extend({
template: wp.template('revisions-meta'),
events: {
'click .restore-revision': 'restoreRevision'
},
initialize: function() {
this.listenTo( this.model, 'update:revisions', this.render );
},
prepare: function() {
return _.extend( this.model.toJSON()[this.type] || {}, {
type: this.type
});
},
restoreRevision: function() {
document.location = this.model.get('to').attributes.restoreUrl;
}
});
// The revision meta 'from' view.
revisions.view.MetaFrom = revisions.view.Meta.extend({
className: 'diff-meta diff-meta-from',
type: 'from'
});
// The revision meta 'to' view.
revisions.view.MetaTo = revisions.view.Meta.extend({
className: 'diff-meta diff-meta-to',
type: 'to'
});
// The checkbox view.
revisions.view.Checkbox = wp.Backbone.View.extend({
className: 'revisions-checkbox',
template: wp.template('revisions-checkbox'),
events: {
'click .compare-two-revisions': 'compareTwoToggle'
},
initialize: function() {
this.listenTo( this.model, 'change:compareTwoMode', this.updateCompareTwoMode );
},
ready: function() {
if ( this.model.revisions.length < 3 ) {
$('.revision-toggle-compare-mode').hide();
}
},
updateCompareTwoMode: function() {
this.$('.compare-two-revisions').prop( 'checked', this.model.get('compareTwoMode') );
},
// Toggle the compare two mode feature when the compare two checkbox is checked.
compareTwoToggle: function() {
// Activate compare two mode?
this.model.set({ compareTwoMode: $('.compare-two-revisions').prop('checked') });
}
});
// The slider visually hidden help view.
revisions.view.SliderHelp = wp.Backbone.View.extend({
className: 'revisions-slider-hidden-help',
template: wp.template( 'revisions-slider-hidden-help' )
});
// The tooltip view.
// Encapsulates the tooltip.
revisions.view.Tooltip = wp.Backbone.View.extend({
className: 'revisions-tooltip',
template: wp.template('revisions-meta'),
initialize: function() {
this.listenTo( this.model, 'change:offset', this.render );
this.listenTo( this.model, 'change:hovering', this.toggleVisibility );
this.listenTo( this.model, 'change:scrubbing', this.toggleVisibility );
},
prepare: function() {
if ( _.isNull( this.model.get('revision') ) ) {
return;
} else {
return _.extend( { type: 'tooltip' }, {
attributes: this.model.get('revision').toJSON()
});
}
},
render: function() {
var otherDirection,
direction,
directionVal,
flipped,
css = {},
position = this.model.revisions.indexOf( this.model.get('revision') ) + 1;
flipped = ( position / this.model.revisions.length ) > 0.5;
if ( isRtl ) {
direction = flipped ? 'left' : 'right';
directionVal = flipped ? 'leftPlusWidth' : direction;
} else {
direction = flipped ? 'right' : 'left';
directionVal = flipped ? 'rightPlusWidth' : direction;
}
otherDirection = 'right' === direction ? 'left': 'right';
wp.Backbone.View.prototype.render.apply( this, arguments );
css[direction] = this.model.get('offset')[directionVal] + 'px';
css[otherDirection] = '';
this.$el.toggleClass( 'flipped', flipped ).css( css );
},
visible: function() {
return this.model.get( 'scrubbing' ) || this.model.get( 'hovering' );
},
toggleVisibility: function() {
if ( this.visible() ) {
this.$el.stop().show().fadeTo( 100 - this.el.style.opacity * 100, 1 );
} else {
this.$el.stop().fadeTo( this.el.style.opacity * 300, 0, function(){ $(this).hide(); } );
}
return;
}
});
// The buttons view.
// Encapsulates all of the configuration for the previous/next buttons.
revisions.view.Buttons = wp.Backbone.View.extend({
className: 'revisions-buttons',
template: wp.template('revisions-buttons'),
events: {
'click .revisions-next .button': 'nextRevision',
'click .revisions-previous .button': 'previousRevision'
},
initialize: function() {
this.listenTo( this.model, 'update:revisions', this.disabledButtonCheck );
},
ready: function() {
this.disabledButtonCheck();
},
// Go to a specific model index.
gotoModel: function( toIndex ) {
var attributes = {
to: this.model.revisions.at( toIndex )
};
// If we're at the first revision, unset 'from'.
if ( toIndex ) {
attributes.from = this.model.revisions.at( toIndex - 1 );
} else {
this.model.unset('from', { silent: true });
}
this.model.set( attributes );
},
// Go to the 'next' revision.
nextRevision: function() {
var toIndex = this.model.revisions.indexOf( this.model.get('to') ) + 1;
this.gotoModel( toIndex );
},
// Go to the 'previous' revision.
previousRevision: function() {
var toIndex = this.model.revisions.indexOf( this.model.get('to') ) - 1;
this.gotoModel( toIndex );
},
// Check to see if the Previous or Next buttons need to be disabled or enabled.
disabledButtonCheck: function() {
var maxVal = this.model.revisions.length - 1,
minVal = 0,
next = $('.revisions-next .button'),
previous = $('.revisions-previous .button'),
val = this.model.revisions.indexOf( this.model.get('to') );
// Disable "Next" button if you're on the last node.
next.prop( 'disabled', ( maxVal === val ) );
// Disable "Previous" button if you're on the first node.
previous.prop( 'disabled', ( minVal === val ) );
}
});
// The slider view.
revisions.view.Slider = wp.Backbone.View.extend({
className: 'wp-slider',
direction: isRtl ? 'right' : 'left',
events: {
'mousemove' : 'mouseMove'
},
initialize: function() {
_.bindAll( this, 'start', 'slide', 'stop', 'mouseMove', 'mouseEnter', 'mouseLeave' );
this.listenTo( this.model, 'update:slider', this.applySliderSettings );
},
ready: function() {
this.$el.css('width', ( this.model.revisions.length * 50 ) + 'px');
this.$el.slider( _.extend( this.model.toJSON(), {
start: this.start,
slide: this.slide,
stop: this.stop
}) );
this.$el.hoverIntent({
over: this.mouseEnter,
out: this.mouseLeave,
timeout: 800
});
this.applySliderSettings();
},
accessibilityHelper: function() {
var handles = $( '.ui-slider-handle' );
handles.first().attr( {
role: 'button',
'aria-labelledby': 'diff-title-from diff-title-author',
'aria-describedby': 'revisions-slider-hidden-help',
} );
handles.last().attr( {
role: 'button',
'aria-labelledby': 'diff-title-to diff-title-author',
'aria-describedby': 'revisions-slider-hidden-help',
} );
},
mouseMove: function( e ) {
var zoneCount = this.model.revisions.length - 1, // One fewer zone than models.
sliderFrom = this.$el.allOffsets()[this.direction], // "From" edge of slider.
sliderWidth = this.$el.width(), // Width of slider.
tickWidth = sliderWidth / zoneCount, // Calculated width of zone.
actualX = ( isRtl ? $(window).width() - e.pageX : e.pageX ) - sliderFrom, // Flipped for RTL - sliderFrom.
currentModelIndex = Math.floor( ( actualX + ( tickWidth / 2 ) ) / tickWidth ); // Calculate the model index.
// Ensure sane value for currentModelIndex.
if ( currentModelIndex < 0 ) {
currentModelIndex = 0;
} else if ( currentModelIndex >= this.model.revisions.length ) {
currentModelIndex = this.model.revisions.length - 1;
}
// Update the tooltip mode.
this.model.set({ hoveredRevision: this.model.revisions.at( currentModelIndex ) });
},
mouseLeave: function() {
this.model.set({ hovering: false });
},
mouseEnter: function() {
this.model.set({ hovering: true });
},
applySliderSettings: function() {
this.$el.slider( _.pick( this.model.toJSON(), 'value', 'values', 'range' ) );
var handles = this.$('a.ui-slider-handle');
if ( this.model.get('compareTwoMode') ) {
// In RTL mode the 'left handle' is the second in the slider, 'right' is first.
handles.first()
.toggleClass( 'to-handle', !! isRtl )
.toggleClass( 'from-handle', ! isRtl );
handles.last()
.toggleClass( 'from-handle', !! isRtl )
.toggleClass( 'to-handle', ! isRtl );
this.accessibilityHelper();
} else {
handles.removeClass('from-handle to-handle');
this.accessibilityHelper();
}
},
start: function( event, ui ) {
this.model.set({ scrubbing: true });
// Track the mouse position to enable smooth dragging,
// overrides default jQuery UI step behavior.
$( window ).on( 'mousemove.wp.revisions', { view: this }, function( e ) {
var handles,
view = e.data.view,
leftDragBoundary = view.$el.offset().left,
sliderOffset = leftDragBoundary,
sliderRightEdge = leftDragBoundary + view.$el.width(),
rightDragBoundary = sliderRightEdge,
leftDragReset = '0',
rightDragReset = '100%',
handle = $( ui.handle );
// In two handle mode, ensure handles can't be dragged past each other.
// Adjust left/right boundaries and reset points.
if ( view.model.get('compareTwoMode') ) {
handles = handle.parent().find('.ui-slider-handle');
if ( handle.is( handles.first() ) ) {
// We're the left handle.
rightDragBoundary = handles.last().offset().left;
rightDragReset = rightDragBoundary - sliderOffset;
} else {
// We're the right handle.
leftDragBoundary = handles.first().offset().left + handles.first().width();
leftDragReset = leftDragBoundary - sliderOffset;
}
}
// Follow mouse movements, as long as handle remains inside slider.
if ( e.pageX < leftDragBoundary ) {
handle.css( 'left', leftDragReset ); // Mouse to left of slider.
} else if ( e.pageX > rightDragBoundary ) {
handle.css( 'left', rightDragReset ); // Mouse to right of slider.
} else {
handle.css( 'left', e.pageX - sliderOffset ); // Mouse in slider.
}
} );
},
getPosition: function( position ) {
return isRtl ? this.model.revisions.length - position - 1: position;
},
// Responds to slide events.
slide: function( event, ui ) {
var attributes, movedRevision;
// Compare two revisions mode.
if ( this.model.get('compareTwoMode') ) {
// Prevent sliders from occupying same spot.
if ( ui.values[1] === ui.values[0] ) {
return false;
}
if ( isRtl ) {
ui.values.reverse();
}
attributes = {
from: this.model.revisions.at( this.getPosition( ui.values[0] ) ),
to: this.model.revisions.at( this.getPosition( ui.values[1] ) )
};
} else {
attributes = {
to: this.model.revisions.at( this.getPosition( ui.value ) )
};
// If we're at the first revision, unset 'from'.
if ( this.getPosition( ui.value ) > 0 ) {
attributes.from = this.model.revisions.at( this.getPosition( ui.value ) - 1 );
} else {
attributes.from = undefined;
}
}
movedRevision = this.model.revisions.at( this.getPosition( ui.value ) );
// If we are scrubbing, a scrub to a revision is considered a hover.
if ( this.model.get('scrubbing') ) {
attributes.hoveredRevision = movedRevision;
}
this.model.set( attributes );
},
stop: function() {
$( window ).off('mousemove.wp.revisions');
this.model.updateSliderSettings(); // To snap us back to a tick mark.
this.model.set({ scrubbing: false });
}
});
// The diff view.
// This is the view for the current active diff.
revisions.view.Diff = wp.Backbone.View.extend({
className: 'revisions-diff',
template: wp.template('revisions-diff'),
// Generate the options to be passed to the template.
prepare: function() {
return _.extend({ fields: this.model.fields.toJSON() }, this.options );
}
});
// The revisions router.
// Maintains the URL routes so browser URL matches state.
revisions.Router = Backbone.Router.extend({
initialize: function( options ) {
this.model = options.model;
// Maintain state and history when navigating.
this.listenTo( this.model, 'update:diff', _.debounce( this.updateUrl, 250 ) );
this.listenTo( this.model, 'change:compareTwoMode', this.updateUrl );
},
baseUrl: function( url ) {
return this.model.get('baseUrl') + url;
},
updateUrl: function() {
var from = this.model.has('from') ? this.model.get('from').id : 0,
to = this.model.get('to').id;
if ( this.model.get('compareTwoMode' ) ) {
this.navigate( this.baseUrl( '?from=' + from + '&to=' + to ), { replace: true } );
} else {
this.navigate( this.baseUrl( '?revision=' + to ), { replace: true } );
}
},
handleRoute: function( a, b ) {
var compareTwo = _.isUndefined( b );
if ( ! compareTwo ) {
b = this.model.revisions.get( a );
a = this.model.revisions.prev( b );
b = b ? b.id : 0;
a = a ? a.id : 0;
}
}
});
/**
* Initialize the revisions UI for revision.php.
*/
revisions.init = function() {
var state;
// Bail if the current page is not revision.php.
if ( ! window.adminpage || 'revision-php' !== window.adminpage ) {
return;
}
state = new revisions.model.FrameState({
initialDiffState: {
// wp_localize_script doesn't stringifies ints, so cast them.
to: parseInt( revisions.settings.to, 10 ),
from: parseInt( revisions.settings.from, 10 ),
// wp_localize_script does not allow for top-level booleans so do a comparator here.
compareTwoMode: ( revisions.settings.compareTwoMode === '1' )
},
diffData: revisions.settings.diffData,
baseUrl: revisions.settings.baseUrl,
postId: parseInt( revisions.settings.postId, 10 )
}, {
revisions: new revisions.model.Revisions( revisions.settings.revisionData )
});
revisions.view.frame = new revisions.view.Frame({
model: state
}).render();
};
$( revisions.init );
}(jQuery));
Rosenblum TV: Video training, virtual workshops, classes, tutorials
RE-INVENTING THE TELEVISION NEWS BUSINESS*
A revolution in video storytelling
Creating entirely new & cost-effective production methods
From the world leaders in video production training and the creators of Character Driven Storytelling™
*and every other business that uses video
WHAT WE DO
Over the past 35 years, we have designed, built or restructured some of the most powerful news and journalism companies in the world.
We replace the traditional TV news ‘crew’ with one highly trained journalist, working alone with nothing but an iPhone.
No more TV news ‘crews’, no editors and no field producers.
This is television news done the way newspaper journalism is done – one reporter with their electronic pad and pencil.
In doing this, we can cut the cost of production by as much as 75% while increasing ratings and audience engagement.
In the place of conventional TV news ‘packages’ – ie, reporter stand up, interview, b-roll, man on the street, we marry great journalism with Netflix and Hollywood storytelling.
It’s a combination that works.
We have taken most of our clients to #1 in their respective markets.
And it’s not just for news. Any company, any profit, any NGO and anyone else who is online needs to tell their story in compelling yet cost-effective video. We can teach you to do that. Either in person or virtually.
EXAMPLES OF WHAT WE CAN TEACH YOUR STAFF TO PRODUCE
ITAY HOD
Itay Hod, MMJ with KPIX/CBS in San Francisco, took the 5-Day Intensive Video Storytelling Bootcamp in 2018.
Because he works alone, with only an iPhone, he was able to embed himself with a homeless family.
Here’s the story he produced in a one-day turn.
KIET DO
Kiet Do, an MMJ with KPIX/CBS in San Francisco, took the 5-Day Intensive Video Storytelling Bootcamp in 2021.
Here is a story he produced, all on his own, with only an iPhone and in a one-day turn.
TAYLOR SCHAUB
Taylor Schaub, an MMJ with Spectrum News 1 in LA, took the 5-Day Intensive Video Storytelling Bootcamp in 2023.
Here is a story he turned in only one day, using only an iPhone. It was the first video story he ever did and it was nominated for an Emmy.
THE BOOTCAMP
How do we convert stations and whole networks to working in this way?
Since 1988, we have run intensive 5-Day Video Storytelling Bootcamps
We have done these all over the world.
These are hands-on bootcamps, and participants learn an entirely new way of creating TV news stories.
-We shoot at a 3:1 ratio or lower, so turnaround times are fast.
-We go directly from camera to timelilne and edit – no written scripts. We work in the medium of pictures and sound.
-We are entirely character-driven.
-We are driven by pictures and real events.
-We are focused almost entirely on ’the viewer experience’.
Since 1988, more than 70,000 journalists around the world have taken our bootcamps, either in person on virtualy.
We have started to work with CBS News, bringing our ideas of character-driven storytelling to one of the most successful and biggest networks in the United States. Since beginning to work with them ratings have climbed and more importantly, audience engagement is through the ceiling.
We started New York Times Television in 1990 and it was the first paper to be brought into the world of TV. It quickly became one of the most successful non-fiction production companies in the United States. The series and documentaries we produced won many awards including multiple Emmys.
We have been working with the BBC since the year 2000 helping to convert their national news network to our visual storytelling technique. Most recently we have trained teams from their sports, documentaries, and comedy divisions to make character-driven stories using only smartphones.
For the past five years we have worked with Spectrum News to introduce and train their journalists on visual, character driven storytelling using smartphones helping to create a different kind of local news for their network of 24-Hour News Stations across the United States.
In 2006, we were approached by the United Nations. Rather than rely on news outlets, it would be much easier to train the field operatives to produce their own stories. We spent two years working with the UN, training more than 100 of their staff in bootcamps in Geneva and Nairobi.
We trained 50 print reporters at the paper to shoot and tell their own stories, in conjunction with their print work. We built a TV newsroom in their existing print newsroom – you could not ask for a better set and they began to live stream their stories in conjunction with their print work.
We spent two years with McGraw Hill, training more than 150 of their staffers, making them completely video literate. McGraw/Hill media properties we transit included Business Week, Aviation Week, (what was the name of the architecture magazine), and JD Power and Associates.
In 1990, we were approached by The Voice of America, the official broadcasting agency for the United States Government. When we met with VOA, they were only a short wave radio broadcaster, but working with them, we took them into television, launching VOA-TV.
British based Oyster Yachts makes some of the finest yachts in the world. Like every other company, they had to find a way to feed the never-ending video demands of social media – sites like Instagram and TikTok. We trained the Oyster staff to tell their own stories, using only iPhones.
We were approached by SEPA, the Scottish Environmental Protection Agency because they had to continually find a way to ‘feed the media beast’. The result was that SEPA was able to tell their own stories, whenever they wanted, and at almost no additional cost.
Michael Rosenblum has been writing about the media since 1988. His work and ideas have appeared in The Guardian, The Huffington Post, Ilkeston Life and many other publications.
He has been blogging regularly for the past 35 years on this subject. Having taught media studies at Columbia University, NYU and now the University of Oxford, he is considered an expert on this subject.
Continue reading this post or look back at previous posts.
